Live trap maybe? With apples and celery and lots of sweet-smelling goodness inside. (But probably on a plate or something so the ants don't get to it.)
I had a bunny living under our deck once. So she'll probably be camping out somewhere shady and then hopping around to forage during the day. See if you can find any of your veg that's been gnawed on. That might be a good place for the trap.
Thank you for your suggestion. I was just about to load up and go get a live trap from our farm supply store when I saw the little bugger sitting in the sand box. So the girls and I rounded him up and cornered him by the compost pile. :)
Yay!